From 1e6fdd9e29f77c955182920744c5c2be706eb3b0 Mon Sep 17 00:00:00 2001
From: emmett1 <emmett1.2miligrams@protonmail.com>
Date: Mon, 16 Mar 2026 00:14:29 +0800
Subject: add function to run from target directory

---
 sfm | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sfm b/sfm
index d35aac1..f08a055 100755
--- a/sfm
+++ b/sfm
@@ -1,5 +1,6 @@
 #!/bin/sh
-# sfm - Simple File Manager in POSIX sh
+# sfm - Simple File Manager in POSIX sh (flicker-free)
+# version 0.3
 
 # --- terminal control ---
 tput_cmd() { command -v tput >/dev/null 2>&1 && tput "$@"; }
@@ -61,7 +62,11 @@ term_rows()   { tput_cmd lines || echo 24; }
 term_cols()   { tput_cmd cols  || echo 80; }
 
 # --- state ---
-CWD="$PWD"; CWD=$(cd "$CWD" 2>/dev/null && pwd) || CWD="/"
+if [ -n "$1" ]; then
+    CWD=$(cd "$1" 2>/dev/null && pwd) || { printf 'sfm: %s: no such directory\n' "$1" >&2; exit 1; }
+else
+    CWD=$(cd "$PWD" 2>/dev/null && pwd) || CWD="/"
+fi
 SEL=0
 OFFSET=0
 PREV_SEL=0
-- 
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